The uncomfortable answer is that our structure of congressional representation is a balance between finesse and complexity, because the average person (and less so the average group of people) can only hold a small number of moving parts in their head at a time.

The representation structure that GPT-5,6,7,... would design is going to be incomprehensibly more complicated and nuanced than 1 person = 1 vote. I don't know what it is, but you're trying to map an alien onto human institutions in a way that is not sensical.